Talking-machine motor.



- I WITNESSES:

W. G. SHELTON.

TALKING MACHINE MOTOR.

APPLICATION FILED SEPT-23, 1915.

1,234,81 1 I Patented July 31,1917.

NVENTOR By orneys,

UNITED STATES PATENT OFFICE.

WILLIAM GENTRY SHELTON, OF NEW YORK, N. Y..

TALKING-MACHINE MOTOR.

Specification of Letters Patent.

Application filed September 23, 1915. Serial No. 52,255.

driving the record of a talking machine independently of the motor of such machine. It is particularly adapted for a spring operated machine, the object of the invention being to provide a simple and inexpensive device for electrically driving a talking machine equipped with a spring motor.

In the drawings accompanying this specification, one practicable embodiment of the invention is illustrated, in which drawings Figure 1 is a top view of a form of talking machine having applied thereto in operative relation, a form of my improved motor; and

Fig. 2 is an enlarged view, being a cross section of portions of the devices illustrated in Fig. 1, and illustratingmy motor in elevation.

My improved motor is designed especially in the form illustrated in the drawings to drive the record disk supporting platen of a talking machine by tractive force, in this illustration applied to the periphery of such platen, and during this drive utilizing the existing governor connected with a spring driven motor. In many instruments of this character the platen may be driven forward independently of the spring motor, particumay when the spring is run down, but such independent rotation is, nevertheless, controlled by the governor. My improved motor may be applied and the record properly driven so that the speed. imparted to the rotary platen carries upon its upper surface V a felt disk 10 forprotecting the under side 'of the record disk when this is provided upon both sides with records, and also for exerting a certain amount of friction between the disk and platen so that the disk will move with the platen. The .platen 9 is shown provided with a hub 11 mounted upon an upright shaft 12 which is rotated by means of thespring motor, the shaft being provided at its lower end with a worm 13 engaged by a worm wheel 14: driven from the spring motor by means of some suitable Patented July 31, 1917.

train or connection. Part of such train or connection comprises a pawl and ratchet trolled by means of balls and spring arms 20, 21. 'The governor is operated from some convenient part of the machine by means of an operating device 22 which is set by a lever 23 having a pointer running across an index 2 1. I

It is to be understood that the foregoing mechanism is illustrated and described as a convenient example of aspring driven motor controlled talking machine.

As above stated, the platen 9 of the talking machine, which supports the record, may be driven forward independently of the spring motor of the machine, and this usually without disconnecting any of the parts other than such disconnection as is permitted by the clutching mechanisms normally present in the machine. In many of the spring driven talking machines the governor is so situated that it controls the speed of the platen, whether this is driven forward by 'the spring of the motor of the machine, or

whether the forward movement is effected independently thereof. Such is the case in the mechanism illustrated herein.

My improved motor takes advantage of .the two facts above noted, namely, the ca pability of independent forward movement of the platen, and the governor control of such independent movement. The illustrated form of my motor comprises an elec- 7 forward without slipping.

trical motor 25. This motor is of some suitable construction, preferably high speed for giving suflicient power when reduced, and is supplied by current in some convenient manner, as for instance, by wires 26.

The casing of the motor is shown provided with dependent legs 27, the lower end of each of which is provided with a soft rubber foot 28. These rubber feet are preferlations in movement, or eccentricity of the platen relative to its shaft, or the journals of the shaft of the talking machine, a certain amount of yieldability of the driving pulley'of the motor toward and from the platen is essential and is permitted by means of the construction above described. The tractive engagement and the yieldability of the parts is enhanced by constructing the pulley 30 of some very elastic material, and any shocks or jars incident to operation are also largely minimized by such construction. A good material for the pulley 30 is sponge rubber.

The illustrated form of my motor, which may well be termed an independent talking machine motor, is particularly designed for use in connection with those forms of talking machineswherein the record supporting or rotating platen is controlled by a governor. 7

'It is obvious that various changes may be made in the construction within the scope of the claims without departing from ,the

spirit of the invention.

What I claim is p 1. The combination with a frame having a horizontally rotatable member of a portable driving means therefor, comprising a supporting member, and a motor member mounted thereon and having a substantially vertically extending shaft provided with a drive means on its lower end portion which rotatively engages the rotatable member, said driving means being removably frictionally maintained in its driving position.

2. The combination with a frame having a horizontally rotatable member, of a portable driving means therefor, comprising a supporting member having a lower yielding frame engaging portion, a motor member mounted thereon and having a substantially vertically extending shaft projecting downwardly therefrom, and a drive wheel formed of a yielding material mounted on the lower end portion of the shaft and frictionally and drivingly engaging the rotatable member, said driving means being removably frictionally maintained in its driving position.

3. The combination with a sound reproducing machine provided with a turntable and a spring motorfor rotating the same, of a portable supplemental driving means therefor, comprising a supporting member, an electric motor member mounted on the supporting member and having a substantially vertically extending shaft projecting downwardly therefrom, and a drive wheel mounted on the lower end portion of the shaft and frictionally and drivingly engaging the periphery. of the turntable, said driving means being removably frictionally maintained in its driving position. 7 I

i. The combination with a talking machine, comprising a record support, a spring motor for driving the support, a clutch mechanism between said spring motor and the support whereby the said support may run forward independently of the said spring, a governor for controlling the forward movement of the said support, of an independent motor comprising an electric motor and means carried thereby for'engaging the said support anddriving the same forward. V

5.' An independent talking machine motor, comprising an electric motor, an elastically yieldable'base therefor, and a pulley for engaging the record support of a talking machine. A

6. An independent talking machine motor, comprising an electrical motor, an elastically yieldable base therefor, and an elastically yieldable pulley for engaging the record support of a talkin machine. 7

7. An independent talking machine motor, comprising an electric motor having a base for resting upon some portion of the talking machine, and an elastically yieldable pulley carried by the motor shaft for engaging the record support of said talking machine. A

8. A device of the character specified, comprising an electric motor having a casing, a pair of legs depending from the easing, elastically yieldable feet at the lower ends of Said legs, an elastically pulley mounted on the shaft of and disposed between said legs.

9. The combination with a sound reproducing machine, provided witha turntable, of a driving means therefor, comprising a supporting member having a part for resting upon some portion of such machine, an electric motor member connected to the supporting member to yieldingly swing relatively to the said part for resting upon the machine, the said motor having a drive the motor yieldable wheel mounted thereon and frictionally and drivingly engaging the periphery of the turntable, said support being adapted for yieldingly holding the drive wheel in engagement with the turntable and frictionally maintaining said driving means in its driving position. v

10. The combination with a sound reproducing machine, provided with a turntable, of a driving means therefor comprising a supporting member having a part for resting upon some portion of such machine, an electric motor member connected to the supporting member to yieldingly swing relatively to the said part for resting upon the machine, the said motor having a substaning the periphery of. the turntable, said su'pport being adapted for yieldingly holding the drive wheel in engagement with the turn table and frictionally maintaining said driving means in its driving position.

In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

WILLIAM GENTRY SHELTON.

Witnesses;

CHAS. LYON RUSSELL, GUSTAVE R. THOMPSON. 

